The people of sparks

The next story of the city of Ember. That I will read next, in the city of ember, said that Lina and Doon discovered their way out of ember. When Lina and Doon lead their people up from the underground city of ember, they discover a surface world of color and life. The people of a small village called sparks agree to help the emberites, but the villagers have never had to share their world before. Soon differences between the two groupes escalate, and it’s up to Lina and Doon to find a way to avoid war!
In the riveting sequel to the highly acclaimed the city of ember, Jeanne DuPrau explores the nature of conflict and the strength and courage necessary to overcome it.